Teaching apparatus block



FIG. 1 is a top plan view of the teaching apparatus block showing my new design;

FIG. 2 is a side elevation view of FIG. 1, the opposite side being identical;

FIG. 3 is a front elevation of FIG. 1, the opposite side being identical;

FIG. 4 is a bottom plan view FIG. 1;

FIG. 5 is an isometric view of FIG. 1 from the top; and,

FIG. 6 is an isometric view of FIG. 1 from the bottom. 

The ornamental design for a teaching apparatus block, as shown and described. 